City water profile

Water hardness in Whitefish

Find official utility reports, understand hardness, and check the water system serving your home in Whitefish, Montana.

Utility-reported hardness

Not yet available

Check your provider and source →

State comparison: Unavailable
Evidence comparison rank: —
Matched utilities: 10
Active health records: 0

Your tap water

What does the utility report?

Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.

Utility hardness unavailable in this index

Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.

Find an official utility report →

Convert a hardness result →Test your tap →

Match the name on your water bill

Your utility’s measurements and compliance records

These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.

EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.

Whitefish City Of

MT0000357 · Surface water · 10,418 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Big Mountain Water Company

MT0000060 · Groundwater · 2,435 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.007 mg/L
Action level: 0.015 mg/L

47% of the listed benchmark

Monitoring period: Jan 1, 2025 to Dec 31, 2025

Violation history (23)

Imported violation history for Big Mountain Water Company
Rule	Status	Period
BHC-GAMMA	Resolved	Jan 1, 2024 to Mar 31, 2024
Dalapon	Resolved	Jan 1, 2024 to Mar 31, 2024
Di(2-ethylhexyl) adipate	Resolved	Jan 1, 2024 to Mar 31, 2024
OXAMYL	Resolved	Jan 1, 2024 to Mar 31, 2024
Atrazine	Resolved	Jan 1, 2024 to Mar 31, 2024
Heptachlor	Resolved	Jan 1, 2024 to Mar 31, 2024
Benzo(a)pyrene	Resolved	Jan 1, 2024 to Mar 31, 2024
Chlordane	Resolved	Jan 1, 2024 to Mar 31, 2024
Simazine	Resolved	Jan 1, 2024 to Mar 31, 2024
Hexachlorocyclopentadiene	Resolved	Jan 1, 2024 to Mar 31, 2024
2,4,5-TP	Resolved	Jan 1, 2024 to Mar 31, 2024
Endrin	Resolved	Jan 1, 2024 to Mar 31, 2024
Methoxychlor	Resolved	Jan 1, 2024 to Mar 31, 2024
Toxaphene	Resolved	Jan 1, 2024 to Mar 31, 2024
LASSO	Resolved	Jan 1, 2024 to Mar 31, 2024
Heptachlor epoxide	Resolved	Jan 1, 2024 to Mar 31, 2024
Picloram	Resolved	Jan 1, 2024 to Mar 31, 2024
Di(2-ethylhexyl) phthalate	Resolved	Jan 1, 2024 to Mar 31, 2024
Carbofuran	Resolved	Jan 1, 2024 to Mar 31, 2024
Dinoseb	Resolved	Jan 1, 2024 to Mar 31, 2024
HEXACHLOROBENZENE	Resolved	Jan 1, 2024 to Mar 31, 2024
Pentachlorophenol	Resolved	Jan 1, 2024 to Mar 31, 2024
2,4-D	Resolved	Jan 1, 2024 to Mar 31, 2024

Ptarmigan Village Inc

MT0000133 · Groundwater · 600 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2015 to Dec 31, 2017

Violation history (1)

Imported violation history for Ptarmigan Village Inc
Rule	Status	Period
Di(2-ethylhexyl) phthalate	Resolved	Apr 1, 2025 to Jun 30, 2025

Flathead Co Water District No 8

MT0000261 · Groundwater · 475 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Forest Acres Tr Pk Whitefish

MT0000064 · Groundwater · 390 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (2)

Imported violation history for Forest Acres Tr Pk Whitefish
Rule	Status	Period
Consumer Confidence Rule	Resolved	Jul 1, 2023 to Jul 5, 2023
Consumer Confidence Rule	Resolved	Jul 1, 2021 to Aug 6, 2021

Iron Horse Homeowners Assoc

MT0004052 · Groundwater · 335 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0 mg/L
Action level: 0.015 mg/L

0% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Country Lake Homes Whitefish

MT0003031 · Groundwater · 260 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.001 mg/L
Action level: 0.015 mg/L

7% of the listed benchmark

Monitoring period: Jan 1, 2017 to Dec 31, 2019

Violation history (1)

Imported violation history for Country Lake Homes Whitefish
Rule	Status	Period
Lead and Copper Rule	Resolved	Oct 1, 2022 to Jun 25, 2023

Happy Valley Water Dist B Kspl

MT0001984 · Groundwater · 207 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.002 mg/L
Action level: 0.015 mg/L

13% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Northwoods Water System Coop Inc

MT0001736 · Groundwater · 135 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Below action level

Reported level: 0.003 mg/L
Action level: 0.015 mg/L

20% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (0)

No record returned in this imported window. This is not a guarantee of tap-water safety.

Alpine Village Wua

MT0003229 · Groundwater · 125 people served system-wide

The system names this served city; Census place overlap links the city to this ZCTA.

No active health-based record in this imported snapshot

Find this utility’s official report →

Measurements (1)

An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.

Lead (90th percentile)

EPA SDWIS Lead and Copper Rule samples

Above action level

Reported level: 0.066 mg/L
Action level: 0.015 mg/L

440% of the listed benchmark

Monitoring period: Jan 1, 2023 to Dec 31, 2025

Violation history (1)

Imported violation history for Alpine Village Wua
Rule	Status	Period
Lead and Copper Rule	Resolved	Dec 30, 2024 to Feb 4, 2025

City summary

What the indexed records say

Whitefish has 1 published ZIP profile across Flathead County. The regional-evidence median is 74 PPM. The city does not meet the stricter comparison standard.

Because only one ZIP is represented, the city median and range are the same local estimate. It should not be read as multiple independent samples across the community. At least one estimate is marked low confidence, so observation distance and date deserve extra attention.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs

Moderately hard1 ZIP

Hard0 ZIPs

Very hard0 ZIPs

1 of 1 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance: 21.9 miles
Profiles with evidence: 1/1

Confidence labels

High: 0Moderate: 0Low: 1

Observation window: Sep 10, 2018 to Sep 10, 2018.

ZIP directory

Water reports in Whitefish

Open a ZIP for site-level provenance and measurements.

ZIP code

59937

Moderately Hard

73.7 PPM

Nearest site: 21.9 mi
Confidence: Low

View full ZIP evidence →

Practical next steps

Move from index to evidence

1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
3. Use a measured hardness result. Confirm health concerns or treatment sizing with the right method.

Continue comparing

Other Montana communities

Lakeside

Flathead County

193 PPM median

Columbia Falls

Flathead County

— No median

Coram

Flathead County

— No median

Hungry Horse

Flathead County

— No median

Kalispell

Flathead County

— No median

Marion

Flathead County

— No median

Search all 133 Montana cities →

Questions people ask

About water in Whitefish

Is the water hard?

Check the utility-reported result above when available. Nearby environmental samples cannot establish tap-water hardness. Ask your provider or test your tap.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.